The vast majority of PES 2021 players use community-made patches that overhaul the game with updated kits, faces, and transfers. These patches often replace or modify the core game files, and they handle Player.bin in different ways.
Do not try to open .bin files with regular text editors (like Notepad). You must use specialized PES database editors. Player.bin Pes 2021 Location
If your game crashes immediately on startup after you tweak the file, it indicates a database mismatch or corruption. This happens if you assign a player an invalid ID, exceed stat limits, or break the file structure during saving. Delete the modified file and restore the backup you created. The vast majority of PES 2021 players use
C:\Users\YourUsername\Documents\KONAMI\eFootball PES 2021 SEASON UPDATE\YourSteamID\save\EDIT.bin How to Extract Player.bin from CPK Files You must use specialized PES database editors
On Windows, the folder that contains your "EDIT00000000" file is: %USERPROFILE%\Documents\KONAMI\eFootball PES 2021 SEASON UPDATE\
Search for the specific player by their real name or internal PES ID. Adjust the desired attributes, mini-faces, or team assignments.
C:\Program Files (x86)\Steam\steamapps\common\eFootball PES 2021\data